added more comments

Author: plooney81

Maths/MatrixMultiplication.js

@@ -1,5 +1,9 @@
 // Wikipedia URL for General Matrix Multiplication Concepts: https://en.wikipedia.org/wiki/Matrix_multiplication
 
+// This algorithm has multiple functions that ultimately check if the inputs are actually matrices and if two Matrices (that can be different sizes) can be multiplied together. 
+// If they can be, then the matrixMult function returns the product of the two matrices. I have included two test scenarios in the file. The first is the multiplication of two
+// matrices that are of the same size [2x2]x[2x2], and the second is the multiplication of two matrices that are not the same size [2x3]x[3x2].
+
 // MatrixCheck tests to see if all of the rows of the matrix inputted have similar size columns
 const matrixCheck = (matrix) => {
  let columnNumb